Detachable heel-section.



L. HAIN.

DETACHABLE HEEL SECTION.

APPLICATION FILED SEPT. 11. 1916.

' Patented Mar. 20,1917.

LEON HAIN, OF PHILADELPHIA, PENNSYLVANIA.

DETACHABLE HEEL-SECTION.

Specification of Letters Patent.

Patented Mar. 20, 1917.

Application filed September 11, 1916. Serial No. 119,354.

To all whom it may concern:

Be it known that I, LEON HAIN, a sub ject of the Czar of Russia, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Detachable Heel-Sections, of which the following is a specification.

My invention consists of improvements in detachable heel sections for boots and shoes,one object being to so construct said sections that they will be securely held on the boot or shoe so that they will 'not accidentally fall or slip off or become loose during their service, but will be of such construction that they may be easily removed by hand.

Another object of my invention is to make one of said sections in the form of a rubber tread and to provide efficient means for securing metallic members to the rubber, so that it will be firmly held to the other of said sections.

,Another object is to so construct the rubber tread section that it will be slightly compressed when attached, said compression of the rubber tending to form a neat joint between the rubber section and the heel of a boot and shoe proper.

A further object is toso construct the sections that they can be easily and quickly secured to the heel portions of boots or shoes while the sections are together so as to insure the proper alinement of both of said sections with the heel portion of the shoe.

These objects, and other advantageous ends which will be described hereinafter, I attain in the following manner, reference being had to the accompanying drawings in which v Figure 1 is a top plan view of my invention showing the two heel sectlons as they appear when separated.

Fig. 2 is a longitudinal sectional elevation of my invention shown attached to the heel of a shoe.

Fig. 3 is a section taken on the line a-a of Fig. 1 when the sections are together and secured to the heel portion of a shoe.

Referring to the drawings, 1 represents the tread section of my invention which is preferably made of pliable rubber and is refor the reception of a plate 3 of cessed at 2 i spring steel or other suitable material which has secured to it and within said recess, a substantially U-shaped plate 4, said plate 3 and plate 4 being secured together by rivets 5, said rivets having countersunk heads 6 which are substantially flush with the outer surface of the plate 4 and enlarged heads 7 preferably made integral.

The "heads 7 are embedded in the rubber tread section 1, as clearly shown in Figs. 2 and 3, said heads being preferably spaced from the inner surface of the plate 3 as shown at 8 so as to provide a resilient connection between the plates 3 and 4 and the tread section 1, the head 7 being sufliciently large to prevent the rivets from pulling out of the rubber, and are preferably molded directly in the rubber.

The plate 4 has its inner edge 9 undercut or beveled inwardly as shown in Fig. 3, and a heel section 10 in the form of a plate designed to be secured to the heel portion 11 of a shoe, has a beveled outer edge 12 which is designed to fit under the undercut edge 9 of the plate 4, said plate 10 being of such shape as to slide into the space provided. by the leg portions of the plate 4 as clearly shown in the several figures of drawing.

The forward end of the plate 10 is bifurcated as shown at 13, and has a beveled front edge 14 between the portions forming said bifurcation (see Figs. 1' and 2). The plate 3 has two slots 15 which extend inwardly from the forward edge thereof, and thereby provide a resilient tongue 16 which has secured thereto a block 17 having its inner edge 18 beveled in the direction of the bevel 14 of the plate 10 when said sections are together.

Holes 19 extend through the rubber and plate 3 of the tread section 1, and are of sufficient size to permit headed nails or screws 20 to pass entirely therethrough. These holes 19 are in register with other holes 21 in the plate section 10 when said latter section' is connected to the tread section as shown in Figs. 2 and 3.

The holes 21, however, are smaller than the holes 10, and are countersunk to receive the heads of the nails 20. By providing the holes 19 and 21,.it is possible to take the sections 1 and 10 while they are together and place them in their proper position on the heel 11 of the shoe, and while they are thus joined to insert the nails 20 through the holes 19 and drive them into said heel 11 of the shoe, the headed portion of the nails or springs engaging and being arrested by the Walls of said section 10 which form 5 said holes and thereby tend to secure the section to the portion 11 of the heel.

The advantage of this construction is that it insures that the plate 20 is properly se cured to the heel portion 11 of the shoe, so that when the tread portion is removed, it will always occupy the properposition with respect to the heel portion 11 when it is slid upon the plate 10. Other holes 21" are provided in the plate 10, and nails may be driven through these holes after the tread section has been slid from said plate section 10 so as to provide additional securing means for said latter section.

Prior to my invention, plates having the same general function as the plates 10 have been used and the method of securing these plates heretofore has been to drive the nails directly through the holes of the plate to secure the plate to the heel portion of the shoe, but unless the position of the plate is accurately measured, it is found that when the tread section is slid onto the plate which is secured to the heel portion of the shoe, the sides of the tread portion will not be in proper register with the sides of said heel portion.

The rubber tread section normally projects beyond the outer surface of the plate 4 as shown by the dot-and-dash lines 22 in Figs. 2 and 3, however, when. the tread section is slid onto the plate section 10, the rubber is compressed so as to have its face 23 flush with the outer face of the plate 4. This insures a neat joint between the tread section 1 and the heel portion 11 and also acts to prevent rattling or a loose fit between the tread section 1, the plate section 10 and the heel portion 11.

The face 24 which is designed to engage the bottom of the heel portion 11 of the shoe, has a recess 25 which has an inclined bottom 26 and a, shoulder portion 2i. This recess facilitates the detachment of the tread section 1 from the plate section 10, since the sections are generally fitted together when they are sold and if for any reason it is desired to remove the plate section 10 from the tread section 1, prior to securing it to the shoe, one hand may be used to press the block 17 downwardly while a finger of the other hand may be used to engage the shoulder 27 of the recess 25 to slide the plate section 10 out of its connection with said tread section.

60 The plate section 10 is provided with an angular extension 28 which is designed to fit within an angular notch 29 in the rear of the plate 4. This extension 28 and notch 29 act to prevent any lateral vibration or move- 95 ment between the sections and also acts as a section 10, while said sections are in place on centering means between said sections, so that they always occupy the same position with respect to each other when they are together.

To remove the tread section from the plate the heel portion of a shoe, it is merely necessary to press the tongue 16 downwardly until the upper surface,30 of the block 17 is moved below the under surface of the plate section 10. The tread section may then be slid rearwardly until it has been entirely removed from the section 10, the rubber in the tread section being sufficiently resilient to permit the tongue portion 16 to be moved downwardly until said surface 30 of the block occupies a position below the lower surface of the section 10 as above described.

With the use of my invention, a detachable heel is provided which snugly and properly fits the bottom of a heel portion of a shoe, and the construction is such as to withstand hard usage.

When the tread section 1 wears out, either two new sections 1 and 10 may be substituted, or the section 10 may be allowed to remainon the heel portion 11, and merely supply a new tread section 1. My improved heel sections may be easily and quickly attached to the heel portions of a shoe, the beveled surfaces 14 and 18 of the sections 10 and block 17 respectively preventing any kick or sudden jar from detaching the several sections, since it will be noted that if the section 1 is struck in the direction of the arrow shown in Fi 2, the tendency will be for the block 1 to move toward the beveled edge 14 of the plate 10, and even though there is a downward separating movement produced by said kick or knock, the beveled edges 14 and 18 will overlap each other and thereby lock the block 17 to the plate 10. However, when in their normal position, the plate 10 and block 17 are such that their edges will clear 110 each other when the tongue 16 is depressed.

To detach the tread section of my improved heel, the plate 3, which extends slightly forward of the other portions of the heel, is pressed downwardly until the 115 member 17 clears the plate 10. The tread section may then be slid rearwardly until it is entirely disconnected from said plate 10, it being noted that since the tread section 1 is made of rubber, it will yield, due 120 to the pressure downwardly of the plate 3, to permit the member 17 to free itself of said plate 10.

While I have described my invention as taking a particular form, it will be under- 125 stood that the various parts of my invention may be changed without departing. from the spirit thereof, and hence I do not limit myself to the precise construction set forth, but consider that I am at liberty to 130 make such changes and alterations as fairly come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination of two interlocking heel sections for shoes, one of said sections being designed to be secured to the heel portion of a shoe, the other of said sections being designed to interlock with the first-mentioned section, each of said sections having holes extending therethrough and registering with each other, the holes in said first section being smaller than the holes in said second section to permit the insertion of headed nails entirely through the second section, the holes in said first section being of such size as to arrest the headed portion of the nails, said nails acting to secure said first section to the heel portion of a shoe, substantially as described.

2. The combination of two interlocking heel sections for shoes, one of said sections being designed to be secured to the heel portion of a shoe, the other of said sections being designed to interlock with the firstmentioned section, each of said sections having holes extending therethrough and registering with each other, the holes in said first section being smaller than the holes in said second section to permit the insertion of headed nails entirely through the second section, the holes in said first section being of such size as to arrest the headed portion of the nails, said nails acting to secure said first section to the heel portion of a shoe, said holes in the first section being countersunk to permit the heads of thenails to be free of the second section when said first section is thus secured to the heel of a shoe, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two' subscribing Witnesses.

LEON HAIN.

Witnesses RHonA E. GILLIES, CHAS. E. Porrs. 

